Mass Estimation in the Globular Cluster M4

作者: M.Y. Amin , M. Rassem , M. Marie

DOI: 10.1023/A:1000402209617

关键词:

摘要: Using the kinematical data we try to solve Jeans equation provide mass estimation of globular cluster M4. The proper motion provides two independent velocity dispersion profiles which need in this estimation. Moreover, have calculated density distribution function and checked anisotropy dispersion.

参考文章(20)
S. Ortolani, M. Capaccioli, G. Piotto, Empirical correlations between globular cluster parameters and mass function morphology Astronomy and Astrophysics. ,vol. 244, pp. 298- 302 ,(1991)
J. P. Phillips, C. Martinez Roger, C. Lazaro Vilchez, C. Sanchez Magro, Near-infrared photometry of red giant and horizontal branch stars in M 4. Astronomy and Astrophysics. ,vol. 161, pp. 257- 263 ,(1986)
Harvey B. Richer, Gregory G. Fahlman, Roberto Buonanno, Flavio Fusi Pecci, Leonard Searle, Ian B. Thompson, Globular cluster mass functions The Astrophysical Journal. ,vol. 381, pp. 147- 159 ,(1991) , 10.1086/170637
Charles J. Peterson, Ivan R. King, The structure of stars. VI. Observed radii and structural parameters in globular clusters. The Astronomical Journal. ,vol. 80, pp. 427- 436 ,(1975) , 10.1086/111759
G. Alcaino, W. Liller, BVRI main-sequence photometry of the globular cluster M4 Astrophysical Journal Supplement Series. ,vol. 56, pp. 19- 65 ,(1984) , 10.1086/190975
Bernard J. McNamara, Kazuhiro Sekiguchi, An internal motion analysis of the open cluster M35 The Astrophysical Journal. ,vol. 310, pp. 613- 620 ,(1986) , 10.1086/164714
D. A. Vandenberg, R. A. Bell, Theoretical isochrones for globular clusters with predicted BVRI and Stromgren photometry. Astrophysical Journal Supplement Series. ,vol. 58, pp. 561- 621 ,(1985) , 10.1086/191052
Peter J. T. Leonard, David Merritt, The Mass of the Open Star Cluster M35 as Derived from Proper Motions The Astrophysical Journal. ,vol. 339, pp. 195- 208 ,(1989) , 10.1086/167287
H. C. Plummer, On the Problem of Distribution in Globular Star Clusters: (Plate 8.) Monthly Notices of the Royal Astronomical Society. ,vol. 71, pp. 460- 470 ,(1911) , 10.1093/MNRAS/71.5.460
R. C. Peterson, D. W. Latham, Stellar velocity dispersions for four low-concentration globular clusters The Astrophysical Journal. ,vol. 305, pp. 645- 650 ,(1986) , 10.1086/164278